Hello dear members of BikeHub, My name is Giovanni - and I'm a total bike newbie. I've always jogged, but recently started to MTB with my dad, a few 10KM/20KM tracks nothing hectic, I'm really growing to enjoy this. I've been doing this on my mom's never-used Mongoose 26"er, however the frame is too small for me. The bike is a Mongoose Super Tyax with SRAM X-5 groupset, SIZE: EXTRA SMALL. 1. I'd like to know if this groupset can be used on any 26" frame? 2. Will I still be able to purchase just 26" frame at a store, since online they seem pretty rare recently. 3. My dad said he paid R1200 for his Gaint frame in 2011, will I still be able to get something for around this price? Of course I'm planning on going to a store here in Pretoria (any suggestions?) Saturday, however I don't want to be fooled into buying a completely new bike if I do not have to. This is just a hobby at the moment and I do not want to spend an arm and a leg since the X-5 seems great to me. Thanks so much Giovanni.